connector 1
connector 2

The SMC Plug has a nut with threads on the insides. It can only be matched with 0.1 and 0.2 cables (RG-316, RG-174, RG-188, RG-142, RG-400)

1/2 inch Super Flex Helix Cable, 50Ω Foam Dielectric Coax Cable Part Number LDF4-50A for Andrew Corporation (Insertion Loss 5.97 dB per 100 Ft @ 5.8 GHz) MFG Commscope (NYSE:COMM)

75Ω impedance TNC Female Bulkhead for RG-179, RG-11, RG-59 Only